Patents by Inventor Hiroyuki Yoshizaki
Hiroyuki Yoshizaki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8999466Abstract: An object of the present invention is to provide a multilayer stretched polyamide-based film having excellent bending resistance, thermal dimensional stability and aroma retention, whose lamination strength is measureable when a sealing layer is laminated thereon. Specifically, the invention provides a multilayer stretched polyamide-based film obtained by biaxially stretching a multilayer laminate including three layers consisting of a polyester layer (Layer A), an adhesive layer (Layer B), and a polyamide layer (Layer C), wherein Layer A contains a crystalline polyester, Layer B contains a modified polyester-based elastomer, Layer C contains an aliphatic polyamide, and Layer C has a thickness of 5 ?m or more, and wherein a sealing layer is to be laminated on Layer C by a lamination method, after biaxially stretching the multilayer laminate.Type: GrantFiled: October 21, 2009Date of Patent: April 7, 2015Assignees: Gunze Limited, Mitsubishi Chemical CorporationInventors: Norio Uehara, Naoyuki Maruichi, Hiroyuki Yoshizaki, Atsushi Nakagawa
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Patent number: 8481137Abstract: An object of the invention is to provide a multilayer stretched film with barrier property that is free from deterioration of barrier properties attributable to dimensional change caused by moisture absorption, and bending, etc. [Method for Achieving the Object] A multilayer stretched film with barrier property obtained by biaxially stretching a multilayer laminate comprising at least three layers, namely, a polyester-based resin layer (Layer A), a polyamide-based resin layer (Layer B), and a polyester-based resin layer (Layer A), in this order (wherein the two Layers A may be the same or different) to obtain a biaxially stretched multilayer film; and providing a deposition layer (Layer C) on at least one surface of the biaxially stretched multilayer film; both of the Layers A containing a crystalline polyester; Layer B containing 70 to 99 wt % of aliphatic polyamide and 1 to 30 wt % of aromatic polyamide; and Layer C containing an inorganic substance.Type: GrantFiled: June 15, 2011Date of Patent: July 9, 2013Assignees: Gunze Limited, Dai Nippon Printing Co., LtdInventors: Norio Uehara, Hiroyuki Yoshizaki, Naoyuki Maruichi
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Patent number: 8367169Abstract: A multilayer stretched film with barrier property that is free from deterioration of barrier properties attributable to dimensional change caused by moisture absorption, and bending, etc. A multilayer stretched film with barrier property obtained by biaxially stretching a multilayer laminate including at least three layers, namely, a polyester-based resin layer (Layer A), a polyamide-based resin layer (Layer B), and a polyester-based resin layer (Layer A), in this order (wherein the two Layers A may be the same or different) to obtain a biaxially stretched multilayer film; and providing a deposition layer (Layer C) on at least one surface of the biaxially stretched multilayer film; both of the Layers A containing a crystalline polyester; Layer B containing 70 to 99 wt % of aliphatic polyamide and 1 to 30 wt % of aromatic polyamide; and Layer C containing an inorganic substance.Type: GrantFiled: June 15, 2011Date of Patent: February 5, 2013Assignees: Gunze Limited, Dai Nippon Printing Co., LtdInventors: Norio Uehara, Hiroyuki Yoshizaki, Naoyuki Maruichi
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Publication number: 20120040117Abstract: A multilayer stretched film with barrier property that is free from deterioration of barrier properties attributable to dimensional change caused by moisture absorption, and bending, etc. A multilayer stretched film with barrier property obtained by biaxially stretching a multilayer laminate including at least three layers, namely, a polyester-based resin layer (Layer A), a polyamide-based resin layer (Layer B), and a polyester-based resin layer (Layer A), in this order (wherein the two Layers A may be the same or different) to obtain a biaxially stretched multilayer film; and providing a deposition layer (Layer C) on at least one surface of the biaxially stretched multilayer film; both of the Layers A containing a crystalline polyester; Layer B containing 70 to 99 wt % of aliphatic polyamide and 1 to 30 wt % of aromatic polyamide; and Layer C containing an inorganic substance.Type: ApplicationFiled: June 15, 2011Publication date: February 16, 2012Applicants: DAI NIPPON PRINTING CO., LTD., GUNZE LIMITEDInventors: Norio UEHARA, Hiroyuki Yoshizaki, Naoyuki Maruichi
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Publication number: 20110315590Abstract: [Object] An object of the invention is to provide a multilayer stretched film with barrier property that is free from deterioration of barrier properties attributable to dimensional change caused by moisture absorption, and bending, etc. [Method for Achieving the Object] A multilayer stretched film with barrier property obtained by biaxially stretching a multilayer laminate comprising at least two layers, namely, a polyester-based resin layer (Layer A) and a polyamide-based resin layer (Layer B) to obtain a biaxially stretched multilayer film; and providing a deposition layer (Layer C) on at least one surface of the biaxially stretched multilayer film; Layer A containing a crystalline polyester; Layer B containing 70 to 99 wt % of aliphatic polyamide and 1 to 30 wt % of aromatic polyamide; and Layer C containing an inorganic substance.Type: ApplicationFiled: June 15, 2011Publication date: December 29, 2011Applicant: GUNZE LIMITEDInventors: Norio Uehara, Hiroyuki Yoshizaki, Naoyuki Maruichi
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Publication number: 20110200770Abstract: An object of the present invention is to provide a multilayer stretched polyamide-based film having excellent bending resistance, thermal dimensional stability and aroma retention, whose lamination strength is measureable when a sealing layer is laminated thereon. Specifically, the invention provides a multilayer stretched polyamide-based film obtained by biaxially stretching a multilayer laminate including three layers consisting of a polyester layer (Layer A), an adhesive layer (Layer B), and a polyamide layer (Layer C), wherein Layer A contains a crystalline polyester, Layer B contains a modified polyester-based elastomer, Layer C contains an aliphatic polyamide, and Layer C has a thickness of 5 ?m or more, and wherein a sealing layer is to be laminated on Layer C by a lamination method, after biaxially stretching the multilayer laminate.Type: ApplicationFiled: October 21, 2009Publication date: August 18, 2011Applicants: GUNZE LIMITED, MITSUBISHI CHEMICAL CORPORATIONInventors: Norio Uehara, Naoyuki Maruichi, Hiroyuki Yoshizaki, Atsushi Nakagawa
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Publication number: 20110117341Abstract: The present invention provides a film that has excellent anti-fogging properties, processability without causing curling, as a film for use in food packaging.Type: ApplicationFiled: June 3, 2009Publication date: May 19, 2011Applicant: GUNZE LIMITEDInventors: Hiroyuki Yoshizaki, Norio Uehara, Naoyuki Maruichi, Takehiko Toyonaga
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Patent number: 4255557Abstract: A process for preparing polycarbonate oligomers by reacting phosgene with an alkaline aqueous solution containing an alkali metal salt or alkaline earth metal salt of a dihydric phenol in the presence of an inert organic solvent, which comprises previously cooling said alkaline aqueous solution to not higher than 0.degree. C., reacting the cooled aqueous solution with phosgene to perform a phosgenation reaction and also to absorb the heat of the phosgenation reaction by the quantity of heat that said cooled aqueous solution has, thereby to adjust the phosgenation reaction system substantially to not higher than 10.degree. C., and then oligomerizing the phosgenation product at a temperature of 15.degree. C. or higher.Type: GrantFiled: October 3, 1979Date of Patent: March 10, 1981Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Takeaki Megumi, Hiroyuki Yoshizaki, Sigeo Kondoh
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Patent number: 4184911Abstract: A process is disclosed for producing powdery polycarbonate from a polycarbonate solution which comprises:(a) charging the solution into the feed opening of a disolvating apparatus, the apparatus being composed of a casing and having at least two screws incorporated therein, the screws meshing with each other; the apparatus comprising two parts; a evaporating zone and a powdering zone; a space being provided above the screws in the evaporating zone, the space extending in the axial direction of the screws and having at least one degassing opening, and side and bottom portions of screws generally fitting with the casing in the evaporating zone; top, side and bottom portions of screws generally fitting with the casing in the powdering zone, heating means being installed in the casing and/or screws;(b) in the evaporating zone, evaporating the solvent of the polycarbonate solution using the heating means while moving the solution by the screws;(c) powdering the dried polycarbonate in the powdering zone; and(d) disType: GrantFiled: June 7, 1978Date of Patent: January 22, 1980Assignees: Mitsubishi Gas Chemical Company, Hitachi Shipbuilding & Eng. Co., Ltd.Inventors: Hiroyuki Koda, Kunio Hamaya, Hiroyuki Yoshizaki, Yutaka Kojima, Shiro Tsuchiya, Shinichi Fukuda, Takashi Ikeno
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Patent number: 4122112Abstract: A process for producing polycarbonate oligomers by the reaction of dihydroxy compounds with phosgene, which comprises contacting a mixture of a dihydroxy compound and an aqueous alkali solution with phosgene in the presence of an organic solvent in a tubular reactor to perform a first-stage reaction, introducing the first-stage reaction mixture into a tank-type reactor equipped with a stirrer and containing the aqueous alkali solution and a solution in the organic solvent of a polycarbonate oligomer formed by the reaction of the first-stage reaction product in a second stage, and performing the second-stage reaction while stirring the reaction mixture in the tank-type reactor and maintaining it at a predetermined temperature by sufficient removal of the heat of reaction.Type: GrantFiled: June 6, 1977Date of Patent: October 24, 1978Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Hiroyuki Koda, Takeaki Megumi, Hiroyuki Yoshizaki
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Patent number: 4059565Abstract: A polyfunctional organic compound, as a crosslinking agent, is used for producing a branched polycarbonate or poly(ester-carbonate).Type: GrantFiled: June 9, 1976Date of Patent: November 22, 1977Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Hiroyuki Yoshizaki, Hiromitsu Takanohashi, Yoshitaka Masuda
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Patent number: 3981843Abstract: An impact-resistant, flame-retardant resin composition is disclosed comprisingI. 100 parts by weight of a resin mixture of:A. 15 to 85 weight percent of ABS resin, andB. 15 to 85 weight percent of a high molecular weight aromatic polycarbonate copolymer derived from 5 to 50 weight percent of a bisphenol the nucleus of which is substituted with a halogen, and 50 to 95 weight percent of an unsubstituted bisphenol, andIi. 0.001 to 5 parts by weight of an inorganic or organic antimony compound.Type: GrantFiled: September 27, 1974Date of Patent: September 21, 1976Assignees: Daicel, Ltd., Mitsubishi Gas Chemical Company, Inc.Inventors: Hiroyuki Yoshizaki, Hiromitsu Takanohashi, Yoshitaka Masuda, Yukio Hozumi, Akira Ohi, Yuzo Sonoyama
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Patent number: 3947524Abstract: A flame retardant resin composition having a high impact resistance is disclosed, containing (A) 20 to 85 weight percent of a high molecular weight aromatic polycarbonate copolymer comprising (1) 2 to 30 molar percent of a bisphenol the nucleus of which is substituted with a halogen and (2) 70 to 98 molar percent of a halogen-free bisphenol and (B) 80 to 15 weight percent of an ABS resin comprising a mixture of (1) a graft copolymer of a butadiene-based rubbery polymer to which is grafted a vinyl aromatic hydrocarbon and acrylonitrile and and (2) a copolymer of a vinyl aromatic hydrocarbon and acrylonitrile. The amount of said rubbery polymer is 5 to 40 weight percent of the ABS resin.Type: GrantFiled: October 23, 1974Date of Patent: March 30, 1976Assignees: Daicel Ltd., Mitsubishi Gas Chemical Company Inc.Inventors: Yukio Hozumi, Akira Ohi, Yuzo Toga, Hiroyuki Yoshizaki, Hiromitsu Takanohashi, Yoshitaka Masuda